A pulse-type blood drawing device for patients with blood diseases

Abstract

The present invention provides a pulse-type blood-drawing device for patients with blood diseases, belonging to the technical field of medical devices. The device comprises a support base, a limiting groove is provided on the top outer wall of the support base, a heating pad is installed on the inner wall of the limiting groove, a first C-shaped buckle is fixedly connected to the top inner wall of the support base, sliding grooves are provided on the outer walls of both sides of the support base, a plurality of latching teeth are fixedly connected to the inner walls of the sliding grooves, and connecting columns are symmetrically fixedly connected to the outer walls of both sides of the support base; a pulse-drawing component is used to promote blood collection after the venous blood filling is apparent. The pulse-drawing component can be set up to inflate a rubber airbag by stepping on a foot pump, thereby compressing the patient's arm vein, making the vein more filled with blood, and facilitating medical personnel to find a suitable vein for puncture. Such a setting can avoid medical personnel from feeling fatigued due to frequent bending or stretching of the arms, as well as the restriction of heavy clothing.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, in particular to a pulse pressure blood drawing device for patients with blood diseases. Background Art

[0002] Hematologic disorders are diseases that originate in or primarily affect the hematopoietic system. While many other systemic diseases can also cause changes in the blood, these can only be considered hematologic manifestations of systemic diseases. Hematologic disorders can be caused by a variety of factors, including chemical, physical, biological, genetic, and immune factors. Symptoms and signs of hematologic disorders vary, with common ones including anemia and leukemia.

[0003] Currently, when drawing blood from anemic patients in winter, medical staff wear heavy coats and sit on a chair opposite the medical table, which is relatively far away from the patient. When drawing blood, they need to first tighten a compression cuff on the patient's arm vein, and then insert a blood collection needle into the patient's arm vein after disinfection to draw blood. As medical staff frequently bend or stretch their arms and are restricted by heavy clothing, they feel more tired. Therefore, the present invention provides a pulse-type blood drawing device for patients with blood diseases to meet this demand. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a pulse pressure blood drawing device for patients with blood diseases. By setting a pulse pressure component, the setting of the pulse pressure component can prompt blood drawing after the venous blood is filled. The rubber air bag can be inflated by stepping on the foot pump to achieve compression of the patient's arm veins, block the blood flow in the veins, make the veins more filled, and facilitate medical staff to find a suitable vein for puncture. Such a setting can avoid medical staff from feeling fatigued due to frequent bending or stretching of arms, and being restricted by heavy clothing on their bodies.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A pulse-type blood drawing device for patients with blood diseases includes a support base, a limiting groove is provided on the top outer wall of the support base, a heating pad is installed on the inner wall of the limiting groove, a first C-shaped buckle is fixedly connected to the top inner wall of the support base, sliding grooves are respectively provided on the outer walls of both sides of the support base, a plurality of teeth are fixedly connected on the inner walls of the sliding grooves, and clamping columns are symmetrically fixedly connected to the outer walls of both sides of the support base; a pulse-compression assembly, the pulse-compression belt assembly is used to promote blood collection after the venous blood is filled, and the pulse-compression assembly is connected to the support base.

[0007] Optionally, the compression assembly includes a first support pad clamped on the outer wall of the clamping column, and a first S-shaped elastic plate fixedly connected to the bottom inner wall of the support base, and a rubber pad is slidably connected to the outer wall of the first support pad.

[0008] Optionally, one end of the first S-shaped elastic plate is fixedly connected to the second support pad, one end of the second support plate is fixedly connected to the first C-shaped elastic plate, the other end of the second support plate is fixedly connected to three second C-shaped elastic plates, one end of the second C-shaped elastic plate is fixedly connected to the second C-shaped buckle, and two limiting elastic handles are symmetrically fixedly connected on both sides of the outer wall of the second support pad.

[0009] Optionally, a snap ring is snapped onto the second C-shaped buckle, the snap ring is fixedly connected to the airbag seat, and a snap groove is provided on the outer wall of the inner ring of the airbag seat.

[0010] Optionally, the slot sleeve is provided with a rubber airbag, and an air inlet pipe is installed on one outer wall of the rubber airbag.

[0011] Optionally, four first frames are sleeved on the inner wall of the rubber airbag, second frames are symmetrically fixedly connected to the outer walls on both sides of the first frames, and snap-on elastic plates are fixedly connected to the outer walls on both sides of the middle of the first frames.

[0012] Optionally, one end of the second skeleton is fixedly connected to the third skeleton, two ends of the third skeleton are symmetrically fixedly connected to second S-shaped elastic plates, and the other end of the second S-shaped elastic plate is fixedly connected to the fourth skeleton.

[0013] Optionally, the other end of the air intake pipe is fixedly connected to the first air duct, and the other end of the first air duct is fixedly connected to the foot pump.

[0014] Optionally, a second air duct is fixedly connected to the middle outer wall of the first air duct, and the other end of the second air duct is fixedly connected to an air release valve, and a plurality of first air vents are formed on the outer wall of the air release valve.

[0015] Optionally, a third S-shaped elastic plate and a fourth S-shaped elastic plate are fixedly connected to the inner wall of the air release valve, and the other ends of the third S-shaped elastic plate and the fourth S-shaped elastic plate are fixedly connected to a press key, and two second air vents are provided on the bottom outer wall of the press key.

[0016] Compared with the prior art, the present invention has at least the following beneficial effects:

[0017] In the above scheme, by setting up a pulse compression component, the setting of the pulse compression component can prompt blood to be drawn after the veins are filled. The rubber airbag can be inflated by stepping on the foot pump to compress the patient's arm veins, block the blood flow in the veins, make the veins more full, and facilitate medical staff to find a suitable vein for puncture. Such a setting can avoid medical staff from feeling fatigued due to frequent bending or stretching of arms, and being restricted by heavy clothing.

[0018] By setting a first support pad and a rubber pad in the compression assembly, the sliding distance can be adjusted according to the length of the patient's arm so that the rubber pad can just be placed on the patient's wrist. The several segmented grooves on the rubber pad can better fit the contour of the patient's wrist, thereby improving the patient's comfort.

[0019] By installing a second support pad, a limiting elastic handle, and a first S-shaped elastic plate within the compression assembly, the position-limiting elastic handle can be controlled to slide within the sliding slot of the support base to the appropriate latch to accommodate different patient needs, due to differences in height and arm length. During adjustment, the position-limiting elastic handle is moved outward from the latch, and the "C"-shaped elastic plastic tube on the position-limiting elastic handle deforms in the bending direction. This, combined with the elasticity of the first S-shaped elastic plate, resets the second support pad so that it can be readjusted to the next patient's needs. This setup can adapt to different patient needs by adjusting the inclination angle of the second support pad, improving patient comfort.

[0020] By arranging a first skeleton, a third C-shaped elastic plate, a second skeleton, and a snap-on elastic plate within the pulse compression assembly, the rubber airbag can be pulled, and the inner wall of the airbag will squeeze the semicircular snap-on portion of the snap-on elastic plate, causing the snap-on elastic plate to deform in the bending direction. Simultaneously, the third C-shaped elastic plate will also deform in the bending direction due to the force, allowing the four first skeletons to be removed from the slots one by one. Subsequently, the rubber airbags that match them can be easily removed. This arrangement allows for easy removal and cleaning of the rubber airbags if they become contaminated after multiple blood draws.

[0021] By setting a second S-shaped elastic plate and a fourth frame in the compression assembly, when the patient passes his arm through the rubber air cushion, if the arm is thicker, the second S-shaped elastic plate will be subjected to force and deform along the bending direction, cooperating with the fourth frame to adapt to the different thicknesses of the patient's arm. This setting can not only shape the rubber airbag, but also adapt to the arm sizes of different patients.

[0022] By arranging an air inlet pipe, a press button, a first vent, a third S-shaped elastic plate and a fourth S-shaped elastic plate in the pulse compression assembly, medical staff can inflate the rubber airbag by stepping on the foot pump. Since the gas enters the rubber airbag from the end with a smaller cross-sectional diameter of the air inlet pipe, the entry speed of the gas can be accelerated, causing the rubber airbag to expand rapidly, so that the arm-fitting surface on the rubber airbag can better fit the patient's arm contour. After blood drawing is completed, the press button on the deflation valve can be pressed, and the gas can pass through the first vent, allowing the rubber airbag to quickly deflate the gas. This arrangement can improve the work efficiency of medical staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable one skilled in the art to make and use the invention.

[0024] Figure 1 A schematic diagram of the three-dimensional structure of a pulse-type blood-drawing device for patients with blood diseases;

[0025] Figure 2 This is an enlarged three-dimensional structural diagram of the support base, the first support pad and the second support pad;

[0026] Figure 3 This is an enlarged three-dimensional structural diagram of the first supporting pad and the rubber pad;

[0027] Figure 4 Schematic diagram of the three-dimensional structure of the support base;

[0028] Figure 5 It is an enlarged three-dimensional structural diagram of the second supporting pad, the first C-shaped elastic plate and the second S-shaped elastic plate;

[0029] Figure 6 This is an enlarged three-dimensional structural diagram of the airbag seat and the rubber airbag;

[0030] Figure 7 It is a schematic diagram of the enlarged cross-section of the three-dimensional structure of the airbag seat and the rubber airbag;

[0031] Figure 8 It is an enlarged half-section three-dimensional structural diagram of the rubber airbag and the first frame;

[0032] Figure 9 It is a schematic diagram of an enlarged three-dimensional structure of the first skeleton, the second skeleton, the third skeleton and the fourth skeleton;

[0033] Figure 10 for Figure 9 A in the middle is an enlarged structural diagram;

[0034] Figure 11This is an enlarged three-dimensional structural diagram of the first air guide pipe, the second air guide pipe and the air release valve;

[0035] Figure 12 This is an enlarged cross-sectional schematic diagram of the third-dimensional structure of the second air guide pipe and the air release valve.

[0036] Reference numerals:

[0037] 1. Support base; 101. Snap-fit column; 102. Sliding slot; 103. First C-shaped buckle; 104. Clamping tooth; 105. Limiting slot; 106. Heating pad; 2. First support pad; 201. Rubber pad; 202. Sliding slot; 3. Second support pad; 301. First C-shaped elastic plate; 302. First S-shaped elastic plate; 303. Limiting elastic handle; 304. Second C-shaped elastic plate; 305. Second C-shaped buckle; 4. Airbag seat; 401. Inlet pipe; 402. Snap ring; 4 03. Card slot; 5. First frame; 501. Second frame; 502. Card-connecting elastic plate; 503. Third frame; 504. Second S-shaped elastic plate; 505. Fourth frame; 506. Third C-shaped elastic plate; 6. Rubber airbag; 601. Arm fitting surface; 7. First air duct; 701. Second air duct; 702. Foot pump; 8. Air release valve; 801. First vent hole; 802. Press button; 803. Second vent hole; 9. Third S-shaped elastic plate; 901. Fourth S-shaped elastic plate.

[0038] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0039] The following describes in detail a pulse-type blood-drawing device for patients with blood diseases provided by the present invention, with reference to the accompanying drawings and specific embodiments. It is also noted that, for the sake of completeness, the following embodiments are best and preferred embodiments, and those skilled in the art may employ alternative implementations for known techniques. Furthermore, the accompanying drawings are intended only to provide a more detailed description of the embodiments and are not intended to limit the present invention.

[0040] It should be noted that references in the specification to "one embodiment," "an embodiment," "exemplary embodiments," "some embodiments," etc. indicate that the described embodiments may include specific features, structures, or characteristics, but not necessarily every embodiment will include such specific features, structures, or characteristics. Furthermore, when specific features, structures, or characteristics are described in conjunction with an embodiment, it is within the knowledge of persons skilled in the relevant art to implement such features, structures, or characteristics in conjunction with other embodiments (whether or not explicitly described).

[0041] In general, terms can be understood, at least in part, from their use in context. For example, depending at least in part on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending at least in part on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0042] It will be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” means not only “directly on” something but also includes the meaning of being “on” something with intervening features or layers, and “on” or “above” means not only “on” or “above” something but also includes the meaning of being “on” or “above” something with no intervening features or layers.

[0043] Additionally, spatially relative terms such as "below," "beneath," "lower," "above," and "upper" may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as illustrated in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein should be similarly interpreted accordingly.

[0044] like Figures 1 to 12As shown, an embodiment of the present invention provides a pulse-type blood drawing device for patients with blood diseases, comprising a support base 1, a limiting groove 105 being provided on the top outer wall of the support base, a heating pad 106 being installed on the inner wall of the limiting groove 105, a first C-shaped buckle 103 being fixedly connected to the top inner wall of the support base 1, sliding grooves 102 being provided on the outer walls of both sides of the support base 1, a plurality of teeth 104 being fixedly connected on the inner walls of the sliding grooves 102, and connecting columns 101 being symmetrically fixedly connected to the outer walls of both sides of the support base 1; a pulse-compression assembly, a pulse-compression belt assembly being used to promote blood drawing after the venous blood is filled, and the pulse-compression assembly being connected to the support base 1.

[0045] Specifically, the support base 1 is composed of four parts as a whole, wherein the bottom is a straight plate shape, the two sides are P-shaped straight plates, and the top is an arc-shaped plate, and they are all made of stainless steel. The limiting groove 105 is opened on the top outer wall of the support base 1, and the heating pad 106 is installed on the inner wall of the limiting groove 105. The limiting groove 105 is a rectangular parallelepiped with an arc, and the heating pad 106 is rectangular. The overall outline adapts to the outline of the limiting groove 105, wherein the wires of the heating pad 106 pass through the round hole set on the inner wall of the limiting groove 105. Since the use of the heating pad 106 is disclosed as a prior art, it will not be repeated here. The first C-shaped buckle 10 3 is fixedly connected to the inner wall at the top of the support base 1. The first C-shaped buckle 103 is a "C"-shaped plastic plate that will deform in the bending direction when subjected to force. The clamping posts 101 are symmetrically fixedly connected to the outer walls of both sides of the support base 1 near the top. The clamping posts 101 are made of stainless steel and are semi-cylindrical in shape as a whole, with semi-spherical shapes at both ends. Two sliding slots 102 are respectively opened on the outer walls of both sides of the support base 1 away from the clamping posts 101. The sliding slots 102 are cashew-shaped, and a number of canine-shaped teeth 104 are fixedly connected to the inner wall of the side close to the clamping posts 101. The teeth 104 are canine-shaped.

[0046] The present invention also provides a pulse compression component, which is configured to facilitate blood collection after the venous blood is filled. During venous puncture, the pulse compression component can not only block the venous blood flow, making the vein more filled and facilitating medical staff to find a suitable vein for puncture, but also avoid medical staff from increasing fatigue due to frequent bending or stretching of arms, and being restricted by heavy clothing on their bodies, while also improving the patient's comfort during blood drawing.

[0047] like Figures 1 to 12As shown, the compression assembly includes a first support pad 2 clamped on the outer wall of the clamping column 101, and a first S-shaped elastic plate 302 fixedly connected to the bottom inner wall of the support base 1, a rubber pad 201 is slidably connected to the outer wall of the first support pad 2, one end of the first S-shaped elastic plate 302 is fixedly connected to the second support pad 3, one end of the second support pad 3 is fixedly connected to the first C-shaped elastic plate 301, the other end of the second support plate is fixedly connected to three second C-shaped elastic plates 304, one end of the second C-shaped elastic plate 304 is fixedly connected to the second C-shaped buckle 305, and two limiting elastic handles 303 are symmetrically fixedly connected on both sides of the outer wall of the second support pad 3.

[0048] Specifically, the first support pad 2 is clamped on the outer wall of the clamping column 101. The first support pad 2 is an arc-shaped plastic plate, and its overall contour is adapted to the outer wall contour of the top of the support base 1. Clamping parts that are convenient for clamping to the clamping column 101 are provided on both sides of the first support pad 2. The inner wall contour of the clamping part is adapted to the outer wall contour of the clamping column 101, and the bottom end has a slightly outward arc. During the clamping process, it is subjected to force and deformed along the bending direction, which is conducive to clamping the first support pad 2 to the clamping column 101. The rubber pad 201 is lens-shaped as a whole and is made of rubber. Several segmented grooves are provided on the outer wall of the top of the rubber pad 201. Such a setting can adapt to the contour of the patient's wrist and improve the patient's comfort. Sliding parts are provided on both sides of the rubber pad 201. The contour of the sliding part is generally in the shape of a "convex" character. On the outer wall of one end of the top of the first support pad 2 away from the sliding clamping slot 102, a sliding groove 202 that is adapted to the contour of the sliding part of the rubber pad 201 is provided.

[0049] One end of the first elastic plate is fixedly connected to the bottom inner wall of the support base 1, and the whole is an "S"-shaped plastic plate, and the other end is fixedly connected to the outer wall of the second support pad 3. The second support pad 3 is a semicircular arc-shaped plastic plate. The first C-shaped elastic plate 301 is fixedly connected to the end of the second support pad 3 close to the first support plate. The first C-shaped elastic plate 301 is in the shape of "C" as a whole and is made of plastic. Three second C-shaped elastic plates 304 are fixedly connected to the other end of the second support pad 3, and the second elastic plates on both sides are distributed in an arc array. The second elastic plate in the middle is symmetrical, and its volume is only half of the second C-shaped elastic plate 304 in the middle. Both are "C"-shaped plastic plates. The second C-shaped buckle 305 is fixedly connected to the other end of the second C-shaped elastic plate 304. The second C-shaped buckle 305 made of plastic material is in the shape of a "C" as a whole. It is made of plastic material. The two limiting elastic handles 303 are symmetrically fixedly connected on both sides of the outer wall of the second support pad 3. The limiting elastic handle 303 as a whole consists of two parts: a "C"-shaped elastic plastic tube and a plastic cylinder with an anti-slip groove.

[0050] When medical staff use this device, they need to first clamp the first support pad 2 on the clamping columns 101 on the outer walls of both sides of the support base 1. At this time, the inner walls of the clamping parts set on both sides of the first support pad 2 will slide along the outer walls of the clamping columns 101 and deform along the direction of its bending until the inner walls of the first support pad 2 are completely in contact with the top outer wall of the support base 1. Then, the sliding parts on both sides of the rubber pad 201 are aligned and slid into the sliding slots 102 opened on the first support pad 2. The sliding distance can be adjusted according to the length of the patient's arm so that the rubber pad 201 can just be cushioned on the patient's wrist, and the several segmented grooves opened on the rubber pad 201 can better fit the contour of the patient's wrist, thereby improving the patient's comfort.

[0051] Due to the different heights and arm lengths of different patients, in order to adapt to the needs of different patients, the limiting elastic handle 303 can be controlled to slide in the sliding slot 102 opened on the support base 1, and slide to the appropriate tooth 104 according to the patient's needs. At this time, the first S-shaped elastic plate 302 will deform along the direction of its bending during the adjustment process. Whenever adjustment is needed, it is only necessary to push the limiting elastic handle 303 outward from the tooth 104, and the "C"-shaped elastic plastic tube on the limiting elastic handle 303 will deform along the direction of its bending, and cooperate with the elasticity of the first S-shaped elastic plate 302 itself to drive the second support pad 3 to reset, so that it can be readjusted according to the patient's needs.

[0052] Because the patient's anemia symptoms will cause an unbearable feeling of cold, stretching the arms in the already cold weather in winter will cause serious discomfort to the patient. At this time, the switch of the heating pad 106 can be turned on to transfer heat to the first support pad 2 to bring a touch of warmth to the patient during the blood drawing process, which has the effect of soothing the patient's emotions. Such a setting can adapt to the different needs of different patients by adjusting the inclination angle of the second support pad 3 and the sliding distance of the rubber pad 201, thereby improving the patient's comfort.

[0053] In this embodiment, if Figures 1 to 12As shown, the second C-shaped buckle 305 is clamped with a clamping ring 402, and the clamping ring 402 is fixedly connected to the airbag seat 4. A clamping groove 403 is provided on the outer wall of the inner ring of the airbag seat 4. The clamping groove 403 is sleeved with a rubber airbag 6. An air intake pipe 401 is installed on the outer wall of one side of the rubber airbag 6. Specifically, the clamping ring 402 is clamped on the second C-shaped buckle 305. The clamping ring 402 is a plastic ring and is fixedly connected to the outer wall of one end of the airbag seat 4. The airbag seat 4 is a hollow plastic cylinder. The clamping groove 403 is provided on the inner ring of the airbag seat 4. On the outer wall, the overall outline of the card slot 403 is a quadrilateral and semicircular grooves are provided on both sides of the inner wall of the card slot 403. The rubber airbag 6 is sleeved on the inner wall of the card slot 403. The rubber airbag 6 is made of rubber and has an arm fitting surface 601 on the inner surface. The air inlet pipe 401 is installed on the outer wall of the rubber airbag 6 close to the support base 1. The air inlet pipe 401 is in the shape of a hollow truncated cone. The cross-sectional diameter of one end inserted into the rubber airbag 6 is smaller than the cross-sectional diameter of the other end. It is made of plastic, which can accelerate the airflow into the airbag.

[0054] Four first skeletons 5 are sleeved on the inner wall of the rubber airbag 6, and the second skeletons 501 are symmetrically fixedly connected to the outer walls on both sides of the first skeleton 5. The two ends of the first skeleton 5 are respectively fixedly connected to the third C-shaped elastic plate 506, and the bottom middle outer wall of the second skeleton 501 is fixedly connected to the snap-on elastic plate 502. One end of the second skeleton 501 is fixedly connected to the third skeleton 503, and the two ends of the third skeleton 503 are symmetrically fixedly connected to the second S-shaped elastic plate 504, and the other end of the second S-shaped elastic plate 504 is fixedly connected to the fourth skeleton 505.

[0055] Specifically, the four first skeletons 5 are sleeved on the inner wall of the rubber airbag 6. The first skeleton 5 is an arc-shaped plastic plate and one end of the third C-shaped elastic plate 506 is fixedly connected at both ends. There are four third C-shaped elastic plates 506 in total, which are "C"-shaped plastic plates. The second skeleton 501 is symmetrically fixedly connected to the outer walls on both sides of the first skeleton 5. The second skeleton 501 is an arc-shaped plastic plate and a hollow part is provided in the middle. A snap-on elastic plate 502 is fixedly connected to the hollow part. A semicircular snap-on portion is provided on the side of the snap-on elastic plate 502 away from the first skeleton 5. The semicircular snap-on portion is a semicircular arc cylinder and the outer wall contour matches the rubber airbag 6 and the semicircular groove provided on the inner wall of the card slot 403. The inner walls are adapted, and both sides of the third skeleton 503 are respectively fixedly connected to one end of the two second skeletons 501. The third skeleton 503 is an arc-shaped plastic plate. The two second S-shaped elastic plates 504 are symmetrically fixedly connected to the two ends of the third skeleton 503. The second S-shaped elastic plate 504 is "S"-shaped as a whole and is made of plastic. When subjected to force, the second S-shaped elastic plate 504 will deform along the bending direction. The two ends of the fourth skeleton 505 are respectively fixedly connected to one end of the second S-shaped elastic plate 504. The fourth skeleton 505 is an arc-shaped plastic plate. The fourth skeleton 505 cooperates with the second S-shaped elastic plate 504 to not only shape the rubber airbag 6, but also adapt to the arm thickness of different patients.

[0056] The other end of the air inlet pipe 401 is fixedly connected to the first air guide pipe 7, the other end of the first air guide pipe 7 is fixedly connected to the foot pump 702, the middle outer wall of the first air guide pipe 7 is fixedly connected to the second air guide pipe 701, the other end of the second air guide pipe 701 is fixedly connected to the air release valve 8, a plurality of first air holes 801 are provided on the outer wall of the air release valve 8, a third S-shaped elastic plate 9 and a fourth S-shaped elastic plate 901 are fixedly connected to the inner wall of the air release valve 8, the other ends of the third elastic plate and the fourth elastic plate are fixedly connected to a press key 802, and two second air holes 803 are provided on the bottom outer wall of the press key 802.

[0057] Specifically, the first air duct 7 is fixedly connected to the end of the air inlet pipe 401 with a larger cross-sectional diameter. The first air duct 7 is a rubber hollow circular tube as a whole and a foot pump 702 is fixedly connected to the other end thereof. The foot pump 702 is disclosed in the prior art and is therefore not described in detail. The first air duct 7 passes through the interior of the support base 1 and is clamped on the inner wall of the first C-shaped buckle 103 mentioned above. The first C-shaped buckle 103 can position and constrain the first air duct 7 to prevent the first air duct 7 from being misplaced. Pressure affects the subsequent inflation or deflation of the rubber airbag 6. The second air guide tube 701 is fixedly connected to the middle outer wall of the first air guide tube 7. The second air guide tube 701 is a rubber hollow circular tube and its other end is fixedly connected to the outer wall near the bottom of the deflation valve 8. A plurality of first vent holes 801 are distributed in a circumferential array and are opened on the outer wall near the top of the deflation valve 8. The deflation valve 8 is in the shape of a hollow cylinder and has a bottom seal at the bottom. One of the third S-shaped elastic plate 9 and the fourth S-shaped elastic plate 901 The ends are fixedly connected to the bottom inner wall of the air release valve 8, the third S-shaped elastic plate 9 and the fourth S-shaped elastic plate 901 are both "S"-shaped plastic plates, and the middle part of the third S-shaped elastic plate 9 passes through the middle part of the fourth S-shaped elastic plate 901. The third elastic plate cooperates with the fourth elastic plate to form an "8" shape with a large top and a small bottom. One end of the third S-shaped elastic plate 9 and the fourth S-shaped elastic plate 901 are fixedly connected to the bottom outer wall of the push button 802. The push button 802 is composed of a circular plate, a cylinder and The hemispherical part is composed of three parts and is made of plastic. Second vent holes 803 are symmetrically opened on both sides of the outer wall of the circular plate part. The second vent holes 803 are long grooves with an arc. After pressing the press button 802, the gas passes through the second vent hole 803 and then escapes from the first vent hole 801, thus completing the deflation of the rubber airbag 6. Subsequently, the press button 802 is pushed to reset under the action of the elasticity of the third S-shaped elastic plate 9 and the fourth S-shaped elastic plate 901. The operation is simple and quick.

[0058] During use, after the patient rolls up his arm, his bare arm passes through the rubber airbag 6. If the patient's arm is too short, the rolled-up sleeve will squeeze the airbag seat 4, causing the second C-shaped elastic plate 304 to deform. At this time, the position of the airbag seat 4 on the patient's arm can be adjusted by tightening and loosening the rolled-up sleeve. If the patient's arm is thicker, the second S-shaped elastic plate 504 will be forced to deform along the bending direction and cooperate with the fourth skeleton 505 to adapt to the thickness of the patient's arm. Then the medical staff inflates the rubber airbag 6 by stepping on the foot pump 702. Since the gas enters the rubber airbag 6 from the end with a smaller cross-sectional diameter of the air inlet pipe 401, the gas entry speed can be accelerated, causing the rubber airbag 6 to expand rapidly, so that the arm fitting surface 601 on the rubber airbag 6 better fits the contour of the patient's arm and applies pressure to the veins on the arm, prompting disinfection and puncture for blood drawing after the venous blood is filled.

[0059] After the blood drawing is completed, the pressing key 802 on the air release valve 8 can be pressed to deform the third S-shaped elastic plate 9 and the fourth S-shaped elastic plate 901 along the bending direction, wherein the circular plate on the pressing key 802 is displaced toward the bottom of the air release valve 8, so that the blocked first vent 801 is unblocked, and the gas passes through the second vent 803 and then out of the first vent 801, thereby allowing the rubber airbag 6 to release the gas, making it easier for the patient to draw out his arm, completing the entire blood drawing process. After repeated rounds of blood drawing, the rubber airbag 6 is contaminated. By pulling the rubber airbag 6, the inner wall of the rubber airbag 6 will squeeze the semicircular clamping portion provided on the clamping elastic plate 502, causing the clamping elastic plate 502 to deform along the bending direction. At this time, the third C-shaped elastic plate 506 will also be forced to deform along the bending direction. It is convenient to remove the four first skeletons 5 from the slots 403 in turn, and then the rubber airbag 6 corresponding thereto can be removed and sent to the cleaning pool to clean the dirt. During installation, the outer wall of the outer ring of the rubber airbag 6 needs to be aligned with the slot 403 of the airbag seat 4, so that the third C-shaped elastic plate 506 is forced to deform along the bending direction, so that the outer wall of the outer ring of the rubber air cushion is inserted into the inner wall of the inner ring of the airbag seat 4, and then the inner wall of the inner ring of the rubber airbag 6 is directly pressed to force the snap-on elastic plate 502 to slide on the inner wall of the slot 403, and the force is deformed along the bending direction until the snap-on part on the snap-on elastic plate 502 slides to the semicircular groove of the slot 403, and the installation is completed. The above structural setting can not only shape the rubber airbag 6, but also adapt to the arm thickness of different patients, and at the same time facilitate the installation and removal of the rubber airbag 6.

[0060] The workflow of the technical solution of the present invention is as follows:

[0061] When in use, it is necessary to first clamp the first support pad 2 on the clamping columns 101 on the outer walls of both sides of the support base 1. At this time, the inner walls of the clamping parts set on both sides of the first support pad 2 will slide along the outer walls of the clamping columns 101 and deform along the direction of its bending until the inner walls of the first support pad 2 are completely in contact with the top outer wall of the support base 1. Then, the sliding parts on both sides of the rubber pad 201 are aligned and slide into the sliding clamping groove 102 opened on the first support pad 2. The sliding distance can be adjusted according to the length of the patient's arm so that the rubber pad 201 can just be cushioned at the patient's wrist, and the several segmented grooves opened on the rubber pad 201 can better fit the contour of the patient's wrist, thereby improving the patient's comfort due to the different heights and arm lengths of different patients.

[0062] When the patient needs to adjust, the first S-shaped elastic plate 302 can be adjusted to fit the needs of different patients by controlling the limiting elastic handle 303 to slide in the sliding slot 102 provided on the support base 1 and slide to the appropriate tooth 104 according to the patient's needs. At this time, the first S-shaped elastic plate 302 will deform along its bending direction during the adjustment process. Whenever adjustment is needed, it is only necessary to push the limiting elastic handle 303 outward toward the tooth 104, and the "C"-shaped elastic plastic tube on the limiting elastic handle 303 will deform along its bending direction, and cooperate with the elasticity of the first S-shaped elastic plate 302 itself to drive the second support pad 3 to reset, so that it can be readjusted according to the patient's needs. Due to the patient's anemia symptoms, he will feel unbearable cold. In the cold weather in winter, stretching his arms will cause serious discomfort to the patient. At this time, the switch of the heating pad 106 can be turned on to transfer heat to the first support pad 2 to bring a touch of warmth to the patient during blood drawing, which has the effect of soothing the patient's emotions.

[0063] After the patient rolls up his arm, his bare arm passes through the rubber airbag 6. If the patient's arm is too short, the rolled-up sleeve will squeeze the airbag seat 4, causing the second elastic plate to deform. At this time, the position of the airbag seat 4 on the patient's arm can be adjusted by tightening and loosening the rolled-up sleeve. If the patient's arm is too thick, the second S-shaped elastic plate 504 will deform along the bending direction and cooperate with the fourth skeleton 505 to adapt to the thickness of the patient's arm. Then the medical staff inflates the rubber airbag 6 by stepping on the foot pump 702. Since the gas enters the rubber airbag 6 from the end with a smaller cross-sectional diameter of the air inlet pipe 401, the gas entry speed can be accelerated, causing the rubber airbag 6 to expand rapidly, thereby making the rubber airbag 6 The arm fitting surface 601 on the bag 6 better fits the contour of the patient's arm and applies pressure to the veins on the arm. After the veins are filled with blood, disinfection and puncture are performed to draw blood. After the blood drawing is completed, the pressing key 802 on the air release valve 8 can be pressed to deform the third S-shaped elastic plate 9 and the fourth S-shaped elastic plate 901 along the bending direction, wherein the circular plate on the pressing key 802 is displaced toward the bottom of the air release valve 8, so that the blocked first vent 801 is unblocked, and the gas passes through the second vent 803 and then out of the first vent 801, thereby releasing the gas in the rubber airbag 6, making it easier for the patient to draw out his arm and completing the entire process of this blood drawing.

[0064] After repeated blood drawing, the rubber airbag 6 is contaminated. The inner wall of the rubber airbag 6 can be pulled to squeeze the semicircular clamping portion of the clamping elastic plate 502, causing the clamping elastic plate 502 to deform along the bending direction. At this time, the third C-shaped elastic plate 506 will also be deformed along the bending direction under the force, making it easy to remove the four first skeletons 5 from the clamping slot 403 in turn, and then remove the rubber airbag 6 that matches it and send it to the cleaning pool to clean the dirt. When installing, it is necessary to The outer wall of the outer ring of the rubber airbag 6 is aligned with the slot 403 of the airbag seat 4, so that the third C-shaped elastic plate 506 is deformed along the bending direction under the force, so that the outer wall of the outer ring of the rubber air cushion is inserted into the outer wall of the inner ring of the airbag seat 4, and then the inner wall of the inner ring of the rubber airbag 6 is directly pressed, forcing the snap-on elastic plate 502 to slide on the inner wall of the slot 403, and the force is deformed along the bending direction until the snap-on parts on the four snap-on elastic plates 502 slide to the semicircular grooves of the slot 403 in turn, and the installation is completed.

[0065] The present invention encompasses any alternatives, modifications, equivalents, and solutions that fall within the spirit and scope of the present invention. To provide a thorough understanding of the present invention, specific details are described in detail below in connection with the preferred embodiments of the present invention, but those skilled in the art will be able to fully understand the present invention without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of the present invention, well-known methods, processes, procedures, components, and circuits have not been described in detail.

[0066] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A pulse-type blood drawing device for patients with blood diseases, comprising a support base, characterized in that: A limiting groove is provided on the top outer wall of the support base, a heating pad is installed on the inner wall of the limiting groove, a first C-shaped buckle is fixedly connected to the top inner wall of the support base, sliding grooves are respectively provided on the outer walls of both sides of the support base, a plurality of locking teeth are fixedly connected to the inner walls of the sliding grooves, and clamping columns are symmetrically fixedly connected to the outer walls of both sides of the support base; A pulse compression component, which is used to facilitate blood sampling after the venous blood filling is apparent, and is connected to the support base; The compression assembly includes a first support plate clamped on the outer wall of the clamping column, and a first S-shaped elastic plate fixedly connected to the bottom inner wall of the support base, and a rubber pad is slidably connected to the outer wall of the first support plate; One end of the first S-shaped elastic plate is fixedly connected to the second support plate, one end of the second support plate is fixedly connected to the first C-shaped elastic plate, the other end of the second support plate is fixedly connected to three second C-shaped elastic plates, one end of the second C-shaped elastic plate is fixedly connected to a second C-shaped buckle, and two limiting elastic handles are symmetrically fixedly connected on both sides of the outer wall of the second support plate; A clamping ring is clamped on the second C-shaped buckle, an airbag seat is fixedly connected to the clamping ring, and a clamping groove is provided on the outer wall of the inner ring of the airbag seat; The slot sleeve is provided with a rubber airbag, and an air inlet pipe is installed on one side outer wall of the rubber airbag; The other end of the air intake pipe is fixedly connected to the first air guide pipe, and the other end of the first air guide pipe is fixedly connected to the foot pump; A second air guide pipe is fixedly connected to the middle outer wall of the first air guide pipe, and an air release valve is fixedly connected to the other end of the second air guide pipe. A plurality of first air vents are opened on the outer wall of the air release valve; A third S-shaped elastic plate and a fourth S-shaped elastic plate are fixedly connected to the inner wall of the air release valve, and the other ends of the third S-shaped elastic plate and the fourth S-shaped elastic plate are fixedly connected to a press key, and two second air vents are provided on the bottom outer wall of the press key.

2. The pulse-type blood drawing device for patients with blood diseases according to claim 1, characterized in that: Four first frames are sleeved on the inner wall of the rubber airbag, second frames are symmetrically fixedly connected to the outer walls on both sides of the first frames, and clamping elastic plates are fixedly connected to the outer walls on both sides of the middle part of the first frames.

3. The pulse-type blood drawing device for patients with blood diseases according to claim 2, characterized in that: One end of the second frame is fixedly connected to the third frame, two ends of the third frame are symmetrically fixedly connected to the second S-shaped elastic plate, and the other end of the second S-shaped elastic plate is fixedly connected to the fourth frame.

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